Records of the Geological Survey of India, Volume 105, Part 2Geological Survey of India, 1973 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 57
... tion . The upper beds occurring in the Briton point area of the John Lawrence island represent " Transition zone ' from the Melville Forma- tion to the upper clay formation . Palaeocurrent directions obtained from the current bedding ...
... tion . The upper beds occurring in the Briton point area of the John Lawrence island represent " Transition zone ' from the Melville Forma- tion to the upper clay formation . Palaeocurrent directions obtained from the current bedding ...
Page 128
... tion . Hornblende ( ZAc = 18 ° ) and plagioclase ( An , 5-40 ) together make up more than 95 per cent of the rock in most of the cases . Kaolinisation of felspar is well marked . Diopside and augite have been occasionally noted with rim ...
... tion . Hornblende ( ZAc = 18 ° ) and plagioclase ( An , 5-40 ) together make up more than 95 per cent of the rock in most of the cases . Kaolinisation of felspar is well marked . Diopside and augite have been occasionally noted with rim ...
Page 141
... tion of MnO , to Mn , O ;; it has been confirmed by X - ray analysis of the sample corresponding to the position B of the D.T.A. curve . The literature on the D.T.A. of manganite shows that earlier workers ( cf. Kulp and Perfetti , 1950 ...
... tion of MnO , to Mn , O ;; it has been confirmed by X - ray analysis of the sample corresponding to the position B of the D.T.A. curve . The literature on the D.T.A. of manganite shows that earlier workers ( cf. Kulp and Perfetti , 1950 ...
Contents
RECORDS | 2 |
The Geology and Mineral Resources of the Andaman | 25 |
Geology of the Coal Measures in the Deccan Trap region | 69 |
Copyright | |
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80 mesh amphibolites analysed Andaman island anorthosites apatite bands Baraganda Baratang Baratang island basaltic basin beds Bihar biotite Bramlette and Riedel calc-granulite calcareous calcite carbonate Carboniferous charnockites chemical clay coal coalfield coalseams conglomerate copper Deflandre deposit Discoaster district endothermic endothermic peak Eocene estherids fauna felspar figs folds foliation Formation fossil gabbro Gangamopteris garnetiferous geochemical Geol Geological Survey glacier gneisses Gondwana grains granitic gray graywacke hill INDIA Records indicate khondalites Krol limestone lodes Lower margins metadolerite metal Middle Andaman mineral mineralisation Mussoorie Nala occur Orissa orthopyroxene oxides para-amphibolite Permian phosphate phosphorite pinnules plagioclase Plate present pyroxene quartz quartzite rocks samples sandstone schist sedimentary sediments shales shear shows siltstone snout South Andaman Stradner strike length Surv Survey of India thickness Thinnfeldia tion tonnes trace element ultrabasic upto valley varies veins younger ortho-amphibolite Zemu glacier zone